Abstract
This paper presents a model of solar cell by using MATLAB SIMULINK. P-V, I-V and P-I characteristics were studied for various values of irradiance at constant temperature. Genetic Algorithm (GA) was used for maximum power point tracking (MPPT) of Photovoltaic (PV) system using the direct control method. The main objective of this paper is to find out the optimal angle, which is used for the positional control of solar module and optimal power tracking. The principle of GAs is searching for the maximum of fitness function and not for the minimum of power derivation; this gives more stability and minimize oscillation of output power around the maximum power point (MPP). The main contribution of the proposed scheme is the elimination of PI control loop which normally exists to manipulate the duty cycle. Simulation results indicate that the proposed controller outperforms the others method for all type of environmental conditions.
Highlights
The necessity of energy is heightening gradually
The purpose of this paper is to increase the efficiency of the Photovolt aic (PV) systems through using Maximum Power Point Tracking (MPPT), by which the solar module can generate maximu m amount of power at any time
hill climbing (HC) is the perturbation in the duty cycle of the power converter, whereas Perturbation and Observation (P&O) method is the perturbation in the operating voltage of the PV array
Summary
Nowa-days we mostly use the conventional energy sources like coal, natural gases, gasoline, fossil fuels, oil, nuclear energy etc to meet this increasing demand. These non-renewable resources are rapidly diminishing day after day. Photovoltaic technology is the science of converting sunlight into electricity [2] This is conditional in many countries putting in place stimulating schemes to help solar energy in the decades so that investment costs to be reduced [3]. MPP, which wastes a considerable amount of power fro m the PV source Another popular approach is the Incremental Conductance method. Oscillation around the MPP may still occur [4,5,6,7]
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